Contrast Checker
Check the WCAG contrast ratio of two colors online — verify AA and AAA requirements for normal and large text. Ensure accessibility for free, no sign-up.
Sample text
Text color
Background
Ratio
AA (Normal 4.5:1)
AA (Large 3:1)
AAA (Normal 7:1)
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How it works
- Pick a foreground and background colour
- The contrast ratio is calculated
- Read the WCAG rating (AA/AAA)